I know about the focus - I think it's the problem of the lens, it's just not quick enough to focus it properly. I tried every mode, and got at most 2 or 3 shots ok, the rest is rather weak. Even though I was quite far from the road, it was still not enough. I tried closing the aperture, many different things, but nothing worked, I have to get a better lens

Yep, there's no one that's even remotely as quick as Loeb. They may be quick on 2 stages of the rally, on 15 other ones it's Loeb that's the quickest. And he doesn't make mistakes (some last year, but none now). He's the best rally driver there's ever been, no doubt about it.